DSE Model 5320 Automatic Mains Failure & Instrumentation System Operators Manual
Part No. 057-014 5320 OPERATING MANUAL ISSUE 5.1 18/06/2007 ADM
7
3.1 AUTOMATIC MODE OF OPERATION
NOTE:- If a digital input configured to panel lock is active, changing module modes will not be
possible. Viewing the instruments
and
i
is NOT affected by panel lock. If panel lock is active the
Panel lock indicator (if configured) illuminates.
This mode is activated by pressing the
pushbutton. An LED indicator beside the button confirms this
action.
Should the mains (utility) supply fall outside the configurable limits for longer than the period of the mains transient
delay timer, the mains (utility) available GREEN indicator LED extinguishes. Additionally, while in AUTO mode, the
remote start input (if configured) is monitored. If active, the
Remote Start Active
indicator (if configured)
illuminates.
Whether the start sequence is initiated by mains (utility failure) or by remote start input, the following sequence is
observed :
To allow for short term mains supply transient conditions or false remote start signals, the Start Delay timer is
initiated. After this delay, if the pre-heat output option is selected then the pre-heat timer is initiated, and the
corresponding auxiliary output (if configured) will energise.
NOTE:- If the mains supply returns within limits, ( or the Remote Start signal is removed if the start
sequence was initiated by remote start) during the Start Delay timer, the unit will return to a stand-by
state.
After the above delays the
Fuel Solenoid
(or enable ECU
output if configured) is energised, then one second
later, the
Starter Motor
is engaged.
NOTE:- If the unit has been configured for CAN, compatible ECU’s will receive the start command
via CAN.
The engine is cranked for a pre-set time period. If the engine fails to fire during this cranking attempt then the
starter motor is disengaged for the pre-set rest period. Should this sequence continue beyond the set number of
attempts, the start sequence will be terminated and
Fail to Start
fault will be displayed.
Alarm
Shutdown
Failed to start
When the engine fires, the starter motor is disengaged and locked out at a pre-set frequency from the alternator
output. Alternatively a Magnetic Pickup mounted on the flywheel housing can be used for speed detection (This is
selected by PC using the 5xxx series configuration software). Rising oil pressure can also be used to disconnect
the starter motor, however it cannot be used for underspeed or overspeed detection.
NOTE:- If the unit has been configured for CAN, speed sensing is via CAN.
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